HALO Halozyme Therapeutics, Inc.

NASDAQ
$107.20

Halozyme Therapeutics, Inc. (HALO) Hedge Fund Activity

This view isolates hedge funds from the broader institutional ownership shown on the Institutional tab. A pension fund tracking an index may have no view on a stock; when a hedge fund builds or exits a position, that decision can carry information. This page measures those changes. Positions as of June 30, 2026.

Based on quarterly 13F long-equity filings. Changes compare reported quarter-end positions; filings can be reported up to 45 days later and do not represent a fund's complete exposure.

Hedge fund breadth
+24.14
18 buyers / 11 sellers
BUYING
Funds compared
30
funds with comparable HALO positions
29 current holders · 20 prior-quarter holders
Net share change
-606.6K
+823.7K added, -1.43M cut
Position activity
10 new 8 increased 10 reduced 1 exited

Most significant moves

Ranked by conviction, not size — how much of the fund's own book the position represents, how far it moved, and what kind of fund made it.

Fund Action Shares changed Change Est. value Portfolio wt. Score
WORLDQUANT MILLENNIUM ADVISORS LLC Quant New +20.5K — $1.6M 0.0% 58
Voloridge Investment Management Quant Sold Out -310.5K -100.0% $24.3M 0.0% 58
Woodline Partners LP Long/Short New +104.2K — $8.2M 0.0% 56
Portolan Capital Management Long/Short New +127.5K — $10.0M 0.4% 56
Quadrature Capital Quant New +13.1K — $1.0M 0.0% 55
Magnetar Capital Event Quant New +4.3K — $333.2K 0.0% 54
ExodusPoint Capital Management Long/Short Quant New +76.7K — $6.0M 0.1% 54
MILLENNIUM MANAGEMENT LLC Reduced -451.4K -95.8% $35.3M 0.0% 54
Verition Fund Management Event Long/Short New +12.5K — $978.4K 0.0% 54
Schonfeld Strategic Advisors Long/Short Quant New +5.4K — $423.6K 0.0% 51

Most significant buyers

By move score, not size.

  • WORLDQUANT MILLENNIUM ADVISORS LLC New · +20.5K
  • Woodline Partners LP New · +104.2K
  • Portolan Capital Management New · +127.5K
  • Quadrature Capital New · +13.1K
  • Magnetar Capital New · +4.3K

Most significant sellers

By move score, not size.

  • Voloridge Investment Management Sold Out · -310.5K
  • MILLENNIUM MANAGEMENT LLC Reduced · -451.4K
  • RENAISSANCE TECHNOLOGIES LLC Reduced · -252.2K
  • Capital Fund Management Reduced · -90.0K
  • Quantbot Technologies Reduced · -2.9K

Hedge fund positions

Fund Tier Shares Previous Change Change % Portfolio wt. Action Score
WORLDQUANT MILLENNIUM ADVISORS LLC 2 20.5K 0 +20.5K — 0.0% New 58
Voloridge Investment Management 2 0 310.5K -310.5K -100.0% 0.0% Sold Out 58
Woodline Partners LP 2 104.2K 0 +104.2K — 0.0% New 56
Portolan Capital Management 3 127.5K 0 +127.5K — 0.4% New 56
Quadrature Capital 3 13.1K 0 +13.1K — 0.0% New 55
Magnetar Capital 2 4.3K 0 +4.3K — 0.0% New 54
ExodusPoint Capital Management 3 76.7K 0 +76.7K — 0.1% New 54
MILLENNIUM MANAGEMENT LLC 2 19.9K 471.3K -451.4K -95.8% 0.0% Reduced 54
Verition Fund Management 2 12.5K 0 +12.5K — 0.0% New 54
Schonfeld Strategic Advisors 3 5.4K 0 +5.4K — 0.0% New 51
Brevan Howard Capital Management 3 4.5K 0 +4.5K — 0.0% New 49
Y-Intercept 4 5.5K 0 +5.5K — 0.0% New 48
Winton Group 4 60.3K 7.5K +52.8K +704.6% 0.2% Increased 45
CITADEL ADVISORS LLC 1 289.1K 191.1K +98.0K +51.3% 0.0% Increased 42
MARSHALL WACE, LLP 2 188.4K 121.0K +67.3K +55.7% 0.0% Increased 41
RENAISSANCE TECHNOLOGIES LLC 1 479.6K 731.8K -252.2K -34.5% 0.1% Reduced 40
Capital Fund Management 3 84.4K 174.4K -90.0K -51.6% 0.0% Reduced 37
Quantbot Technologies 4 378 3.3K -2.9K -88.5% 0.0% Reduced 36
Squarepoint Ops LLC 2 37.0K 62.3K -25.3K -40.5% 0.0% Reduced 36
Bridgewater Associates 1 463.1K 511.4K -48.3K -9.4% 0.2% Reduced 35
D. E. Shaw & Co., Inc. 1 2.0M 1.9M +137.8K +7.4% 0.1% Increased 33
AQR Capital Management 3 785.6K 1.0M -230.9K -22.7% 0.0% Reduced 29
TWO SIGMA INVESTMENTS, LP 2 1.7M 1.6M +68.3K +4.3% 0.1% Increased 29
Man Group 3 158.8K 141.5K +17.3K +12.2% 0.0% Increased 26
Walleye Capital 3 43.9K 53.4K -9.5K -17.8% 0.0% Reduced 25
Gotham Asset Management, LLC 2 739.3K 746.8K -7.6K -1.0% 0.1% Reduced 24
Hudson Bay Capital Management 3 135.0K 130.0K +5.0K +3.8% 0.1% Increased 24
Edgestream Partners 4 49.4K 51.1K -1.7K -3.4% 0.1% Reduced 19
Engineers Gate 4 46.2K 43.3K +2.9K +6.7% 0.0% Increased 19
Holocene Advisors, LP 2 9.2K 9.2K 0 +0.0% 0.0% Unchanged 20

Every fund above opens. Subscribers can see any manager's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.

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Hedge funds are identified from their 13F filings, which are due 45 days after quarter end and cover long U.S.-listed equity positions only. A fund's short book never appears, so a reduced position can mean a changed view or a changed hedge — the filing doesn't say which.